[4:76] Those who believe fight in the way of God, and those who disbelieve fight in the way of a false deity. Fight therefore against the friends of Satan; surely the plotting of Satan is ever feeble.
Those who are sincerely devoted to God do not prefer anything to God and they do not hold anything back from God. They are ever against their lower selves for the sake of God. Those who disbelieve are the reverse to the states of the believers. Therefore He strengthened and encouraged [the believers] saying: Fight therefore against the friends of Satan, i.e., do not feel any fear towards them, for I am taking care of your affairs and will suffice for you against your enemies.